Under-Ballast Mats

Under Ballast Mats are supplied in rolls. These are easy to install in single or double layers, plus the addition of a bottom stabilisation layer if required. The systems do not have closing joints between these layers, further simplifying installation.

Designed to last, Pandrol UBMs have tested and proven long-term stable properties and continued performance. They are highly resistant to changing atmospheric conditions, chemical exposure and mechanical fatigue.

Pandrol UBM solutions UBMs are fully water permeable in both the vertical and horizontal planes, meaning that drainage characteristics of the track are unaffected when the mats are installed.

Available in a wide range of stiffnesses, Pandrol UBMs provide a tuneable approach to vibration isolation that can be modified to meet exact requirements. A resonance frequency as low as 14 Hz can be achieved.

A non-woven geotextile protection layer is used to protect mats against ballast stone penetration. In addition, the geotextile protects joints between the mats and acts as a filter for small particulates while retaining water permeability.

Pandrol Under Ballast Mat Solutions are made from 90% recycled materials and are 100% recyclable.